Lab: Heredity and Punnett Squares — Unit test

Question 14 • FL-2002070-M/J Comprehensive Science 2

Which is the best example of a neutral mutation?

Answer

one that causes abnormal human skin cells to reproduce and divide rapidly, producing a mole

one that increases the size of a seed pod, allowing the seeds inside to be spread and eventually grow

one that results in smooth plant leaves, while not changing the function of the leaves

one that brightens the feathers of a bird, making it easier for other animals to see it

Explanation

A neutral mutation does not significantly affect an organism’s survival or ability to reproduce. Smooth leaves that still function normally are an example because the mutation changes appearance without changing leaf function. The other choices affect cell growth, seed dispersal, or visibility to predators or mates.

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Unit Test

Unit Test

Lab: Heredity and Punnett Squares